You should be able to filter the events you are interested in Diagnostics Search UI. Unfortunately can’t add screenshot, but these are the instructions – click on Diagnostic search part on Maine Overview blade, click Filter button (at the top of the Diagnostics search blade), Find “Event name” item in the list of properties on the right, click on Arrow icon next to “Event name” – you should be ale to see the list of events and chose the events you need.

Please take a look at the Properties list – you may find other items you might be interested to filter on.

Dear Team,
I removed from my app insight my test application (www.acervoviewer.com) but I continue receiving e-mails about health. I do not want to receive this e-mail and I do not want to track this application.
What should I do to stop it?

We understand and are keenly aware of the deficiencies in the current events experience, and are indeed affected by the same in our own internal use. Improving this experience is high priority on our backlog. As we plan for the improvements ground-up we will certainly keep your suggestions in mind and reach out to you for more feedback.
We greatly appreciate your active participation and patience as we improve Application Insights.
Thank you!

I want to be able to mark events as "read" and problem categories as "known" such that:
1) "Read" events can be filtered from view
2) "Read" events do not impact the reliability metric
3) "Read" events do not impact the default "Exception Events" count
4) Events in "known" categories are automatically marked as "read"